TY - GEN
T1 - A study of high pressure 1,3-butadiene laminar burning velocity
AU - Zhao, Hao
AU - Zhang, Zunhua
AU - Rezgui, Yacine
AU - Ju, Yiguang
N1 - Funding Information:
This work was supported by NSF CBET-1507358 research grant and the Princeton Environmental (PEI)-Andlinger Center for Innovative Research Awards in Energy and the Environment.
Publisher Copyright:
© 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018
Y1 - 2018
N2 - The spherical flame speed of 1,3-butadiene is studied at 1-18atm in experiments and simulations. The presently measured 1,3-butadiene/air flame speeds are lower than the previous studies. It shows a large uncertainty in the reported measured flame speeds from the linear extrapolation and flow compression correction. At high pressure and fuel lean conditions, Zhou's 1,3-butadiene kinetic model (2018, in press) over-predicts the flame speeds significantly. According to the 1,3-butadiene flame speed sensitivity analysis, C0-C2 small hydrocarbon chemistry and addition reactions of 1,3-butadiene with O/H radicals dominate the reaction kinetics. Especially, the chain branching and termination reactions of 1,3-C4H6 + O = C2H3 + CH2CHO and 1,3-C4H6 + O = CH2O + C3H4-a have large uncertainties for the 1,3-butadiene flame speed prediction. By changing the branching ratio of these two competing 1,3-butadiene + O reactions and replacing the C0-C2 chemistry by HP mech (Zhao, 2017), an updated kinetic model is develop to predict the 1,3-butadiene high pressure flame speeds at both lean and rich conditions. It shows that the present model improves the predictions significantly, especially at the fuel lean condition.
AB - The spherical flame speed of 1,3-butadiene is studied at 1-18atm in experiments and simulations. The presently measured 1,3-butadiene/air flame speeds are lower than the previous studies. It shows a large uncertainty in the reported measured flame speeds from the linear extrapolation and flow compression correction. At high pressure and fuel lean conditions, Zhou's 1,3-butadiene kinetic model (2018, in press) over-predicts the flame speeds significantly. According to the 1,3-butadiene flame speed sensitivity analysis, C0-C2 small hydrocarbon chemistry and addition reactions of 1,3-butadiene with O/H radicals dominate the reaction kinetics. Especially, the chain branching and termination reactions of 1,3-C4H6 + O = C2H3 + CH2CHO and 1,3-C4H6 + O = CH2O + C3H4-a have large uncertainties for the 1,3-butadiene flame speed prediction. By changing the branching ratio of these two competing 1,3-butadiene + O reactions and replacing the C0-C2 chemistry by HP mech (Zhao, 2017), an updated kinetic model is develop to predict the 1,3-butadiene high pressure flame speeds at both lean and rich conditions. It shows that the present model improves the predictions significantly, especially at the fuel lean condition.
UR - http://www.scopus.com/inward/record.url?scp=85044409996&partnerID=8YFLogxK
U2 - 10.2514/6.2018-2182
DO - 10.2514/6.2018-2182
M3 - Conference article published in proceeding or book
AN - SCOPUS:85044409996
SN - 9781624105241
T3 - AIAA Aerospace Sciences Meeting, 2018
BT - AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Aerospace Sciences Meeting, 2018
Y2 - 8 January 2018 through 12 January 2018
ER -